Capacitor thin film containing modified nano clay and preparation method thereof

A technology of capacitor film and nano-clay, which is applied in the direction of fixed capacitor dielectric and fixed capacitor parts, etc., can solve the problems that the film is difficult to meet, the demand is large, and the price is high, so as to achieve enhanced barrier properties, air tightness, and heat-sealing strength High, good heat sealing performance

Inactive Publication Date: 2013-05-15
TONGLING YIHENGDA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Film capacitors use metal foil as an electrode, which is stacked with plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate from both ends, and wound into a cylindrical capacitor; in all Among the plastic film capacitors, the characteristics of polypropylene (PP) capacitors and polystyrene (PS) capacitors are the most significant. Of course, the price of these two capacitors ...

Method used

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Examples

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Embodiment 1

[0016] Embodiment 1: Containing the capacitor film of modified nanoclay, the parts by weight of its raw materials are: metallocene linear low density polyethylene resin 52, metallocene polypropylene resin 28, homopolypropylene 12, epoxy linseed oil 4 , polyvinyl alcohol 2.5, aluminum hydroxide 1.5, polyisobutylene 1.5, diatomaceous earth 10, ferrocene 1.5, poly-4-methyl-1-pentene 1.0, modified nano clay 10, antioxidant 1035 1.0, Polyester phthalate 0.7, epoxy octyl stearate 1.5, calcium stearate 5 and modified tree ash 1.8.

[0017] A method for preparing a capacitor film containing modified nano clay, comprising the following steps:

[0018] (1) Weigh the diatomite according to the weight of the raw materials, first soak the diatomite in 20-25% hydrogen peroxide for 3-4 hours, roast it at 400-450°C for 3-4 hours, and grind it into 400-45 Mesh powder;

[0019] (2) Add epoxy linseed oil and polyvinyl alcohol into the mixer according to the weight of the raw materials, raise t...

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PUM

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Abstract

The invention discloses a capacitor thin film containing modified nano clay and a preparation method thereof. The capacitor thin film comprises the following raw materials in parts by weight: 50-55 of metallocene linear low-density polyethylene resin, 25-30 of metallocene polypropylene resin, 10-15 of homo-polypropylene, 3-5 of epoxy linseed oil, 2-3 of polyvinyl alcohol, 1-2 of aluminum hydroxide, 1-2 of polyisobutylene, 8-12 of diatomite, 1-2 of ferrocene, 0.7-1.3 of poly-4-methyl-1-amylene, 8-12 of modified nano clay, 0.9-1.1 of antioxidant 1035, 0.6-0.8 of phthalic acid polyester, 1-2 of epoxidation ethylhexyl stearate, 4-6 of calcium stearate, and 1.7-2.0 of modified trees ash. The preparation method disclosed by the invention is simple; and simultaneously, the diatomite, the modified nano clay and the modified trees ash are added to the raw materials so that the barrier property and air tightness of the thin film are improved, and the thin film has good resistance to pressure and impact resistance and simultaneously has the characteristics of high heat-seal strength and good heat sealing property.

Description

technical field [0001] The invention relates to a capacitor film material, in particular to a capacitor film containing modified nano clay and a preparation method thereof. Background technique [0002] Film capacitors use metal foil as an electrode, which is stacked with plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate from both ends, and wound into a cylindrical capacitor; in all Among the plastic film capacitors, the characteristics of polypropylene (PP) capacitors and polystyrene (PS) capacitors are the most significant. Of course, the price of these two capacitors is also relatively high. The quality of the capacitor film directly affects the service life and product performance of the capacitor. The demand for films is large and there are many types. It is difficult to meet the requirements of the market by using a single raw material to produce films, but each raw material has its shortcomings, so the produced films are difficult to meet...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/12C08L29/04C08L23/20C08K13/06C08K9/06C08K3/34C08K3/36C08K9/04C08K9/02C08K3/26C08K3/22H01G4/18
Inventor 杜其信
Owner TONGLING YIHENGDA ELECTRONICS
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